Abjad U
JEJAK
MAHASISWA
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Dibuat
12/19/2011 | ||||||||||||||
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ultimate causation
The hypothetical evolutionary explanation for the existence of a certain pattern of animal behavior.
unsaturated fatty acid
A fatty acid possessing one or more double bonds between the carbons in the hydrocarbon tail. Such bonding reduces the number of hydrogen atoms attached to the carbon skeleton.
urea
A soluble form of nitrogenous waste excreted by mammals and most adult amphibians.
ureter
A duct leading from the kidney to the urinary bladder.
urethra
A tube that releases urine from the body near the vagina in females or through the penis in males; also serves in males as the exit tube for the reproductive system.
uric acid
An insoluble precipitate of nitrogenous waste excreted by land snails, insects, birds, and some reptiles.
urochordate
A chordate without a backbone, commonly called a tunicate, a sessile marine animal.
uterus
A female reproductive organ where eggs are fertilized and/or development of the young occurs.
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